Fire extinguisher



Patented Get 5, 1926.

states earner FIRE EXTINGUISHER.

Application filed March 12, 1923. Serial No. 624,500.

This invention relatesto fire extinguishers of the t e'that consist of a large container filled w1th a solution and a small receptacle in said container filled with a substance that is ada tedto be mixed with the solution in sai container so as to produce a fire extinguishing compound, the small receptacle usually consisting of a bottle arranged in a cage in the upper end of the container and provided with a stopple or loose cover that can be displaced or. moved into an operative position so as to permit the escape of the contents of said bottle by in'-. verting the'conta'i'ner. v

The object of my invention is to provide a fire extinguisher of the general type referred to, which is so constructed that it is impossible for the liquid in the container to splash upwardly into the discharge opening in the upper end portion of the container and leak out of the discharge hose when the container is arranged -in its normal upright position.

' Figure 1 of the drawings is a vertical sectional view of a fire extinguisher constructed in accordance with my invention, showing the container arranged in its normal upright position.

Figure 2 is a vertical sectional view, showing the container inverted and the stopple arranged in its operative position; and

Figure 3 is a horizontal sectional view, taken on the line 3-3 of Figure 1, looking in the direction indicated by the arrows.

Referring to the drawings which illustrate the preferred form of my invention, A

designates a container of conventional form that is adapted to be filled with a liquid, usually a bicarbonate solution, and B designates'aibottle arranged inside of said container and adapted to contain sulphuric acid,

or some other substance, which, upon being mixed with the solution in the container ISO A, will produce a fire extinguishing compound.

The bottle B is supported by a cage C arranged adjacent the upper end of the c011 tainer A, and the bottle B is provided witha stopple or closure D composed of a horizontally-disposed top portion 1, a depending SklltPOItiOn 2 of tubular form that surrounds the neck a: of the bottle and a" guide 3 that projects downwardly from the .top portion 1 into the-neck of the bottle, as shown in Fi re 1. The to ortion 1 of the stopple is preferably 55k shape in bottle, as shown in Figure 1.

general outline and is of such diameter with relation to the cage C that the peripheral edge of same cooperates with the vert1cally disposed side piecesy at theupper end of the bottle cage C to hold the stopple in proper position, in the event the stopple is thrown upwardly from its normal seat on the rim at the upper edge of the neck of the bottle, due

to a violent movement of the container A.

The depending skirt portion 2 of the stopple is preferably so proportioned that the lower edge of same-normally bears upon or contacts with the body portion of the bottle, and said skirt portion is provided 7 at its lower end with a weight .2 formed by a thickened portion at the lower end of said skirt that tends to hold the stopple 1n operative position on the neck of the When the container A is inverted, as shown in Figure 2, so as to cause the contents of the. bottle B to mix with the solution in the container A, the stopple- D will move downwardly into an operative po- 30 sition without liability of jamming or assuming an angular position, due to the fact that the peripheral edge of the to portion 1 of the stopple slides upon an is guided by the vertically-disposed pieces 3 of the bottle 35- cage.

As shown in Figure 1, the container A is provided adjacent its upper end with a discharge opening 4 with which a discharge hose .E communicates. nate the possibility oflthe liquid in the containerA splashing upwardly into the discharge opening 4, and thus eventually leaking out of the lower end of the hose E, I

arrange a plurality of bafiles F and G over the discharge opening 4, as shown'in Figure 1. "The baflie F, which'l will refer to as'the lnner bafile, consists U of a concavo-convex member of oval shape in general outline connected to the inner side of the top of the container at such a point that it extends over the discharge opening 4 in said to and pro-. I 'vided with a relatively large out et hole 5 and a plurality of drain'holes 6. The crosssectional area of the outlet hole 5 is equal to or in excess ofthe cr'oss-sectionalarea of the discharge hole 4," and said baflie F is so positioned that the outlet hole 5' therein 1s disposedoppositelyto a solid ortion of the top of the container, and the rain holes no point 6 in said baflie are located at the low of the baflie.

In order to elimi- 90 The bafiie G, which I will refer to as the outside baflie, extends over the baflie F and is substantially L-shaped in'transverse cross section, said outside bafile, being considerably longer than'tlie inside bafile, as

shown in Figure 3. The upright portion or vertically-disposed portion of the bafiie G is provided with two sets of orifices 7, the combined cross-sectional area of which is .equalto or exceeds the cross-sectional area 0 5 in the inner baflle F.

to the drain holes 8 container, an

If the container A is subjected to such action as to cause the liquid in same to splash upwardly against the underside ofthe top of said container, some of said liquid will pass through the orifices 7 in the baflie G into the space between said baflie and the top of the container,-but as said orifices are located directly opposite sol-id portions of the top of the container, such liquid will strike against the said top, and thence fall downwardly onto the inclined lower portion of the bafile G, down which said liquid flows and escapes through said holes back into the container A. If some of the liquid which passescinwardly through the orlfices' in the bafile G should enter the outlet hole 5 in the inner baflie F, such liquid will strike againstthe top of the container and be deflected downwardly towards the drain holes 6' at the lower end of the baflleF, due to the fact-that the outlet" hole 5 in the bafileF is located diametrically opposite a solid portion ofthe top of the container. It will thus be seen that violent agitation of the liquid in the container A cannot result in said liquid s lashing out of the dischar e opening 4 int e to of the thus eventually finding its way to the lower end of the discharge hose E, due to the fact that said discharge opening'is protected by two superimposed baffles spaced apart and provided with holes or orifices which are so positioned that each hole or group of holes is located diametrically opposite a solid wall that deflects downwardly any liquid that passes 'through said opening and strikes against vsaidwall, the

baflies having drain openings so as to permit the escape of any liquid that-passes through said baflles. When the container is inverted the contents ofsamecan escape freely through the hose E, due to the fact that the cross-sectional area of the orifices 7 in the baffle G and of the outlet hole 5 in the bafile F are equal to or in excess of the cross-sectionalarea of the discharge opening 4 in the top of the container.

Having thus described my invention, what 'I claim as new and desire to secure by Letters Patent is: I 1. A fire extinguisher, comprising a liquid container that is adapted to be inverted to discharge the contents of'same, a dischar e v opening in the top-of said container, a su stantially concavo-convex bafile connected to th inner sideof said top over said discharge opening and provided with an outlet hole disposed out of alignment with said discharge opening, and a second baflle connected to the inside of the top of the container and arranged over the baffle first referred to, said second bafile having orifices disposed oppositely to solid portions of the top of said container.

2. A fire extinguisher, comprising a liquid container adapted to be inverted so as to discharge the contents of same, a *dis-.

charge opening in the top of said container, a substantially concavo convex, oval-shaped baflle connected to the inner side. of said top and extending over said discharge opening, said baflle having an outlet hole disposed oppositely to a solid portion of said top and drain holes arranged adjacent its lower end, a second bafile of substantially angle shape in cross section connected to the inner side of the top' of the container and arranged over the baffle first referred to, sets of orifices in the vertical leg of said angle-shaped baflle disposed oppositely -to solid portions, of the top of the container,

and drain holes in the horizontal leg of said I angle-shaped baflie.

3. An outlet guard for'liquid receptacles, comprising a baflie plate positioned in front of the outlet, and a perforated guard plate positioned infront of the baflle plate and spaced therefrom.

CHARLES KL HUTHSING. 

